Home / 15,266.58-21,070.18-8,895.30

Finding the Fourth Proportional to 15,266.58, 21,070.18 and 8,895.30

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Solution

The fourth proportional to 15,266.58, 21,070.18 and 8,895.30 is: 12,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.58 : 21,070.18 = 8,895.30 : x
  2. Step 2: Convert to fraction form
    15,266.58/21,070.18 = 8,895.30/x
  3. Step 3: Cross multiply
    15,266.58x = 21,070.18 × 8,895.30
  4. Step 4: Simplify right side
    15,266.58x = 187,425,572.15
  5. Step 5: Solve for x
    x = 187,425,572.15/15,266.58
  6. Step 6: Final answer
    x = 12,276.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.